Valve for internal-combustion engines.



W. Z. FLOWER. VALVE FOR INTERNAL COMBUSTION ENGINES.

' APPLICATION FILED JAN. 12, 1912. 1,856,593, I Patented July 8,1913.

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atfocuup VALV W. FLOWER, E FDR INTERNAL comusnw APPLIOATI 0N FILED JAN 12,1912.

BEGIN ES Patented July 8,1913

2 SHEETSBH'BBT Z.

TE TAT ATENT ()FFICE.

VV'ABD 'Z.- FLOWER, 'OF GIBBON MINNESOTA.

. VALVE -Foxqn'rnnnAt-coivnaps'rion ENGINES.

To all whom 1'1.- may concern:

lie it known that I, YARD Z. FLOWER, a

- citizen of the United States, resii'ling at Gil-ihon, in the county of Sibley and .State' of Minnesota, have in'vented certain new and usefullmproveinents in Valves for Internal- Coinbustion Engines; andlvdo declare the -following to be a full, clear; and exactde- I all'noise is eliminated. -Thes'e'and otherob i t-ion engines, and inure especially to the valves thereof; and the object ,of the same is to produce an improved form of valve which is easily accessible when it needs attention and an improved form of pack ng therefor also easily accessible, and a valy e inwh ch jects are". accomplished by the construction hereinafter more fully} described and claimed, and as shown in the drawings I Specification of-Letters Patent. Application filed January 12, 1912.

Figure 1 isaside ele i ati-on of this engine, complete,'-and Fig. 21s. an endw'uew thereof aken at rig htangles t0 the position shownv in Fig. 1. Fig. 3 is a vertical section on the line 3430f Fig.9. Fig. 4. is a veitica-l section similar to Fig. 3, excepting that. the nearer face plate only of the valve casing is omitted. Fig. 5 isa vertical section through this entire engine on the line of Fig. 3, and Fig. 6 ma. horizontal section on the line (3-6"(if Fig. 1. "Fig. 7 is an enlarged detailed View of one of the valve-packing plates, and Fig. S-is a sectional detailed view on t-helinc 8-8 of Fig. 7. V

In the drawings is' conventionally shown a four-cycle gasolene engine which may be briefly describe-(has including a piston I. reciprocating vertically within a. cylinder C surrounded by a water jacket J, the piston being connected with the crank shaft S whereon is .nountedLthe flywheel F and the charge above the piston being ignited by a spark plug SP. the irtake being designated at I and the exhaust ME.

The purpose of thepresent invention is to control the inlet-of the charge from the intake to the cylinder and the outlet of the burnt gasesfrom the cylinder to the exhaust,

and yet avoid the use of the valves so com-' inonly employed at prescnt in engines of Serial No. 670,813.

this; character and which are closed by springs and opened by cams on a cam shaft. .Coining now more particularly to the present intent-ion,- the numeral 1. designates a valve, casing secured as at '2 to each side' of the cylinder C and itself by preference made-in two halves as best seen in Fig. 1, having ears 3 which are boltedtogether as .at 4 so that the halves can be separated when desired. The. general shape of the casing is cylindrical, its axis-being horizontal, and the iiitalcefgpipe opens otl' center through the'casingat the point 5, \vhilea port 6 leads ll llt llgl'l the opposite \vallofthe ca Disposed \vilhinsaid casing is a disk-valve .10 fixed upon a shaft-.ll ournaled through the heads of the casing and carryinga wheel 12 on:- oi'ie-extrcni which inthepresent instance is shown as sprocket connected Patented July 8,1913.

log and into-the cylinder-t1 as seen in-Fig. '5.

by chain 13 with a smaller sprocket 14 on the inain' shaft S so that two revolutions of the latter are necessary to' inpart; one revolution to the valve-sl'iaft and its valv'c, as is usual in, four-cyclc gz'isolencengines However, this construction andarrangement is onlyftypical of any means that maybe cm- 'ployed for rota ting the valve shaft from the crank-shaft. I am describing hut oneof the valves of which two are shown in 5, but

the shaft 11 extends across, past the cylinder C as seen in Fig. 2, and is attached to' both disk-valves 10, so that the same are rotated simultaneously by means of the connectionv with the main shaft S just described or any other that may be used. These dislrs have by 'prefcrencc considerable size and may p ss'ibly, he of "the proportion illustrated in t e' drawings; and although they also have some considerable thickness, it is=-no t great but what there is space left within each casing 1 or the packing WlllCll'lS specially constructed as will be seen below.

Referring now more particularly to Figs. 5 and (3, the inlet 5 at the inner end of the intake pipe I, the port 6 directly opposite thereto, and the port 20 through the valveice.

disk 10 are disposed as shown in these views, I

although the intake port 20 through one disk and the exhaust port- 20 through the opposite disk will be out of register as'well understood in four-cycle engines and as shown in dotted lines in Fig. 4. Within each valve casing 1 at the inner side of the disk therein an aperture 22 is formed in the inner. wall of the casing and ribs 23 in the outer wall thereof, defining a recess corresponding in shape with the ports but larger; and within each recess is located the. valve packing which is a. washer 25 (preferably of cast iron) having a port. 26 through it of a size and shape to register with the other ing within their casings. At a proper moment. the inlet port 20 comes in register with the intake ports 5 and 6' anda charge isadmitted to the cylinder; later it is compressed and filutl as usual, and then the outlet port 20 in the other disk comes into register with the outlet ports leading from the cylinder and into the exhaust E, and the spent gases are ejected as usual. The force of the compression and the force of the explosion are borne by those packing washers which are outside of the two disks, and when said washers become worn they maybe easily replaced by taking 055 either one half of the casing or simply the outer face plate thereof. At 50 is shown an oil cup by means of which a proper lubricant can be admitted to the interior' of the valve casing, so that the disk in rotating tnerein will not unduly wear the inner faces of the washers which are borne against it with considerableforce.

I reserve the right to make changes in details as come within the spirit of this in through its heads and off center thereof, a

disk-shaped valve rotating within said casing and pierced with a port which reg sters with the ports in the casing at each revolution of the valve, the inner faces of the casing heads having recesses around said ports, a'washer fitting loosely in each recess with its inner face against the disk valve and its outer face having recesses adjacent its port, and in each of the recesses an ex pensive spring pressing the washer into contact with the disk valve.

2. In an internalcoi'nbustion engine, the

combination with an upright cylinder having inlet and exhaust ports in its opposite sides, and independent cylindrical valve casings secured against said sides of the cylinder and having alined ports through their heads in alinement with the ports -in the-cylinder; of the intake pipe communicating with the inlet port of one casing, the exhaust pipe communicating withv the outlet port of the opposite casing a shaft journaled through the axes of both casings, means for rotating this shaft, two diskshape d valves fast on said shaft and each within one of said casings and havingan ofi' center port adapted to registerwith the alined ports through its casing, the ports in the two valves being set in timed relation to each other, and packing within each casing on both sides of the disk valve.

In testimony whereof I have hereunto set my hand in presence of two subscribing wit-- nesses.

I WARD Z.. FLOWER. Witnesses:

WILLIAM H. GUois'isEne,

E .,H. GAUHAGE'N. 

